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參數(shù)資料
| 型號(hào)： | ADUC814 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | MicroConverter, Small Package 12-Bit ADC with Embedded Flash MCU |
| 中文描述： | MicroConverter的，小包裝12位ADC，嵌入式閃存MCU |
| 文件頁數(shù)： | 34/72頁 |
| 文件大?。?/td> | 846K |
| 代理商： | ADUC814 |
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ADuC814
USER INTERFACE TO OTHER ON-CHIP ADuC814 PERIPHERALS
This section gives a brief overview of the various peripherals
also available on-chip. A summary of the SFRs used to control
and configure these peripherals is also given.
Rev. A | Page 34 of 72
DACS
The ADuC814 incorporates two 12-bit, voltage output DACs
on-chip. Each DAC has a rail-to-rail voltage output buffer capa-
ble of driving 10 k/100 pF. They have two selectable ranges,
0 V to V
REF
(an external or the internal band gap 2.5 V
reference) and 0 V to AV
DD
, and can operate in 12-bit or 8-bit
modes. DAC operation is controlled by a single special function
(SFR) register, DACCON. Each DAC has two data registers,
DACxH/L. The DAC0 and DAC1 outputs share pins with ADC
inputs ADC4 and ADC5, respectively. When both DACs are on,
the number of analog inputs is reduced to four. Note that in
12-bit mode, the DAC voltage output is updated as soon as the
DACL data SFR has been written; therefore, the DAC data
registers should be updated as DACH first, followed by DACL.
When using the DACs on the V
REF
range it is necessary to power
up the ADC to enable the reference to the DAC section.
See Note 1.
DACCON
SFR Address
Power-On Default
Bit Addressable
DAC Control Register
FDH
04H
No
MODE
RNG1
RNG0
CLR1
CLR0
SYNC
PD1
PD0
Table 12. DACCON SFR Bit Designations
Bit No.
Name
7
MODE
Description
Mode Select Bit. Selects either 12-bit or 8-bit mode for both DACs.
Set to 1 by the user to enable 8-bit mode (DACxL is the active data register).
Set to 0 by the user to enable 12-bit mode.
DAC1 Output Voltage Range Select Bit.
Set to 1 by the user to configure DAC1 range of 0 V to AV
DD
.
Set to 0 by the user to configure DAC1 range of 0 V to 2.5 V (V
REF
range)
1
.
DAC0 Output Voltage Range Select Bit.
Set to 1 by he user to configure DAC0 range of 0 V to AV
DD
.
Set to 0 by the user to configure DAC0 range of 0 V to 2.5 V (V
REF
range)
1
.
DAC1 Clear Bit.
Set to 1 by the user to enable normal DAC1 operation.
Set to 0 by the user to force DAC1 output voltage to 0 V.
DAC0 Clear Bit.
Set to 1 by the user to enable normal DAC0 operation.
Set to 0 by the user to force DAC0 output voltage to 0 V.
DAC0/1 Update Synchronization Bit.
Set to 1 by the user to enable asynchronous update mode. The DAC outputs update as soon as the DACxL SFRs are
written.
Set to 0 by the user to enable synchronous update mode. The user can simultaneously update both DACs by first
updating the DACxH/L SFRs while SYNC is 0. Both DACs then update simultaneously when the SYNC bit is set to 1.
DAC1 Power-Down Bit.
Set to 1 by the user to power up DAC1.
Set to 0 by the user to power down DAC1.
DAC0 Power-Down Bit.
Set to 1 by the user to power up DAC0.
Set to 0 by the user to power down DAC0.
1
For correct DAC operation on the 2.5 V to V
REF
range, the ADC must be powered on.
6
RNG1
5
RNG0
4
CLR1
3
CLR0
2
SYNC
1
PD1
0
PD0
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADUC814_02 | 制造商:AD 制造商全稱:Analog Devices 功能描述:MicroConverter, Small Package 12-Bit ADC with Embedded FLASH MCU |
| ADUC814AN | 功能描述:8052 MicroConverter? ADuC8xx Microcontroller IC 8-Bit 16.78MHz 8KB (8K x 8) FLASH 制造商:analog devices inc. 系列:MicroConverter? ADuC8xx 包裝:- 零件狀態(tài):上次購買時(shí)間 核心處理器:8052 核心尺寸:8-位 速度:16.78MHz 連接性:I2C，SPI，UART/USART 外設(shè):POR，PSM，溫度傳感器，WDT I/O 數(shù):- 程序存儲(chǔ)容量:8KB（8K x 8） 程序存儲(chǔ)器類型:閃存 EEPROM 容量:640 x 8 RAM 容量:256 x 8 電壓 - 電源（Vcc/Vdd）:2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:* 振蕩器類型:內(nèi)部 工作溫度:* 封裝/外殼:- 供應(yīng)商器件封裝:- 標(biāo)準(zhǔn)包裝:1 |
| ADUC814ARU | 功能描述:IC ADC 12BIT W/FLASH MCU 28TSSOP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標(biāo)準(zhǔn)包裝:38 系列:Encore!® XP® 核心處理器:eZ8 芯體尺寸:8-位 速度:5MHz 連通性:IrDA，UART/USART 外圍設(shè)備:欠壓檢測(cè)/復(fù)位，LED，POR，PWM，WDT 輸入/輸出數(shù):16 程序存儲(chǔ)器容量:4KB（4K x 8） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 105°C 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 包裝:管件 其它名稱:269-4116Z8F0413SH005EG-ND |
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| ADUC814ARU-REEL | 制造商:Analog Devices 功能描述:MCU 8-Bit ADuC8xx 8052 CISC 8KB Flash 3V/5V 28-Pin TSSOP T/R 制造商:Analog Devices 功能描述:12 BIT ADC WITH EMBEDDED 8-BIT MICRO I.C - Tape and Reel |
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